Raceworks 340lph Fuel Pump 39mm E85 Safe Walbro 255 GSS342 Equivalent EFP-500

Upgrade your fuel system with the Raceworks 340LPH Fuel Pump (EFP-500) a high-performance in-tank solution engineered for reliability, efficiency, and compatibility with modern fuels, including E85. Designed as a direct equivalent to the popular Walbro 255 (GSS342), this pump delivers increased flow, improved efficiency, and exceptional durability for performance applications.

Flowing 340 litres per hour at 40psi, the EFP-500 is ideal for turbocharged, supercharged, and high-performance naturally aspirated engines. It supports up to 600hp at the engine or approximately 500hp at the wheels on E85, providing consistent and stable fuel delivery under demanding conditions.

Built with corrosion-resistant internal components, the Raceworks EFP-500 is fully E85 safe, making it suitable for ethanol-based and flex-fuel applications. Its 39mm body diameter allows fitment into a wide range of OEM fuel baskets and aftermarket hangers, making it a versatile upgrade option.

KEY FEATURES:

• 340LPH high-flow output at 40psi
• E85 safe compatible with ethanol-based fuels
• 39mm body diameter for wide vehicle fitment
• Direct equivalent to Walbro 255 (GSS342)
• Suitable for turbocharged, supercharged, and high-performance NA builds
• Quiet, efficient, and durable internal design
• Includes filter, hose, clamps, and wiring pigtail (where applicable)
• Backed by a 2-year warranty

PERFECT FOR:

• Street, strip, and track performance builds
• E85 conversions and flex-fuel applications
• Vehicles requiring higher flow than OEM fuel pumps
• Upgrading from a Walbro 255 for improved efficiency and reliability